JP2005276075A - Plant data backup system, plant data backup method, backup control program and storage medium with the same stored thereon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant data backup technology which is convenient and with which plant data can be utilized for a long time. <P>SOLUTION: A plant data management server for periodically fetching plant data dependent upon a plant operation history sent from a plant computer and storing the plant data in a storage section is connected with a backup server for backing up the plant data stored in the storage section, and the backup server comprises a main storage means for storing data and an auxiliary storage means including a removable storage medium. In the plant data management server, in the timing of backup, in the plant data stored in the storage section, plant data of a predetermined period in the past set in accordance with kind of data are sent to the backup server, so that a storage area for the sent data is available for novel plant data. Furthermore, in the backup server, at least a part of the plant data sent from the plant data management server are stored in the auxiliary storage means as they are, thinned out and stored in the main storage means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a plant data backup technique suitable for using plant data depending on the operation history of a plant sent from a plant computer such as a thermal power plant for a long period of time.

  In the case of a plant such as a thermal power plant, it is necessary to grasp the plant state in order to manage the operation of the plant. In the plant data management server. For this reason, since a huge amount of plant data is stored in the storage unit of the plant data management server, there is an inconvenience that the limit is reached early even when the capacity of the storage unit is sufficiently set.

For this reason, conventionally, the plant data stored in the storage unit of the plant data management server is backed up on a magnetic tape, or a backup server is connected and backup is performed using Patent Document 1 or the like. It is considered to transfer the plant data in the plant data management server to a backup server.

Japanese Patent No. 2938860

  However, when all the plant data is backed up to a magnetic tape, there are inconveniences such as taking a lot of time and inconvenience in examining past plant data. In addition, when using a backup server, there is a disadvantage that a sufficient storage period cannot be secured because the plant data is simply transferred from the plant data management server.

  Therefore, the present invention has been made in view of the circumstances as described above, and is easy to use, and a plant data backup system and backup method capable of using plant data for a long period of time, a backup control program, and this The main problem is to provide a storage medium that stores information.

  In order to achieve the above object, a plant data backup system according to the present invention includes a plant data management server that periodically captures and stores in a storage unit plant data that depends on an operation history of a plant sent from a plant computer, A backup server that is connected to the plant data management server and backs up the plant data stored in the storage unit, and the plant data management server is a backup time of the plant data. Determining means for determining whether or not the backup time is determined by the determining means, the past data set according to the type of data among the plant data stored in the storage unit Extract plant data for a specified period and send it to the backup server The backup server includes main storage means for storing data and auxiliary storage means having a removable storage medium, and at least one of the plant data sent by the data sending means. A full data backup unit that stores the data in the auxiliary storage unit as it is, and an intermittent data backup unit that thins out the at least part of the plant data and stores it in the main storage unit, and the plant data management server includes: The system further comprises means for making the storage area of the plant data sent to the backup server after sending the plant data by the data sending means available for new plant data fetched from the plant computer (Claim 1). ).

  Here, the plant data refers to analog history data depending on the operation history of the plant, computer data calculated based on the analog history data, and the like. Further, the backup time may be a regular time or an irregular time, and the regular backup time is, for example, a predetermined time on a predetermined day of every month. Furthermore, the plant data of the past predetermined period set according to the type of plant data is, for example, a computer in which plant data is calculated based on analog history data depending on the operation history of the plant and the analog history data. If it is composed of data, if it is analog history data, plant data for one month that is going to pass 2 years, if it is computer data, plant data for 1 month that is going to pass 5 years, etc. Say. Moreover, as an auxiliary storage device having a removable storage medium, for example, a DVD or the like is applicable.

  Further, when the plant data is composed of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data, the full data backup means and the intermittent data backup means are provided as analog data. The backup server may be configured to further include means for storing the computer data sent by the data sending means as it is in the main storage means.

  In order to achieve the above object, a plant data backup method according to the present invention is a plant data management server that periodically takes in plant data sent from a plant computer and depends on the operation history of the plant and stores it in a storage unit. And a backup server that backs up the plant data stored in the storage unit, and a main storage unit that stores data in the backup server and an auxiliary storage unit that has a removable storage medium. A method of using the network system, wherein the plant data management server determines whether it is the backup time of the plant data, and if it is determined that it is the backup time of the plant data, the storage Plant data stored in the department Among them, a process of extracting plant data for a predetermined period in the past set according to the type of data and sending it to the backup server, and a storage area for the data sent to the backup server after sending the plant data And making it available for new plant data to be taken in, and at the backup server, at least a part of the plant data sent from the plant data management server is stored in the auxiliary storage means as it is And a backup step of thinning out the at least part of the plant data and storing it in the main storage means (claim 3).

  Here, when the plant data is composed of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data, the backup step is performed on the analog data. The computer data may be added to the backup server at any time before or after the backup process by the backup server. .

  Furthermore, in order to achieve the above object, a computer-readable backup control program according to the present invention is a plant that periodically takes in plant data sent from a plant computer and saves it in a storage unit. A main storage means for storing data in the backup server, and a removable storage medium, comprising: a data management server; a backup server connected to the plant data management server and backing up the plant data stored in the storage unit; An auxiliary storage means having a system configured to back up plant data, the plant data management server to determine whether it is the backup time of the plant data, Back of the plant data The plant data stored in the storage unit is extracted from the plant data for a predetermined period in the past set according to the type of the data to the backup server. And a function for making a storage area of data sent to the backup server after sending the plant data available for new plant data to be taken in from the plant computer. At least a part of the plant data sent from the data management server is stored in the auxiliary storage unit as it is, and a backup function for thinning out the at least a part of the plant data and storing it in the main storage unit is realized. (Claim 5).

  Here, when the plant data is composed of analog history data that depends on the operation history of the plant and computer data that is calculated based on the analog history data, the backup control program is provided for the analog history data. The backup function may be realized, and the computer data may further be realized with the backup server storing the data sent from the plant data management server in the main storage device as it is (Claim 6).

  The above-described program may be provided by being stored in a computer-readable storage medium (Claim 7), or may be distributed via wired or wireless communication means.

  As described above, according to the present invention, at the backup time, in the plant data management server, the plant in the past predetermined period set according to the type of data among the plant data stored in the storage unit. The data is extracted and sent to the backup server, and the storage area of the data sent to the backup server can be used for new plant data imported from the plant computer. In the backup server, the data is sent from the plant data management server. Since at least a part of the plant data is stored in the auxiliary storage means as it is and thinned out and stored in the main storage means, the period that cannot be saved in the plant data management server is thinned out in the backup server. By using plant data, It is possible to quickly grasp the operation history, and it is possible to refer to the plant data stored in the removable storage medium only when detailed data is required, making it easy to use long-term plant data. It can be used well.

  In addition, plant data is divided into analog data that depends on the operation history of the plant and computer data that is calculated based on this analog data. Analog data is thinned out and stored in the main memory and not thinned out. If the computer data is stored in the main storage device as it is output from the plant data management server to the backup server, the storage format differs depending on the type of data. Therefore, it becomes possible to use each data for a long time.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best embodiment of the present invention will be described below with reference to the accompanying drawings.

  In FIG. 1, the structural example which applied the plant data backup system and method which concern on this invention to the plant data management system which manages the plant data of the thermal power plant (BTG plant) comprised from a boiler, a turbine, and a generator is shown.

  The plant data management system includes a plant data management server 2, a control room terminal 3, a backup server 4, etc. connected via a network 1, unit computers 7 a and 7 b connected to a power plant unit network 6, Outdoor equipment computers 9 a and 9 b connected to the unit network 6 via a gateway processor (GWP) 8 are connected to the network 1 via a gateway server 5.

  Here, each of the servers 2 and 4 and the control room terminal 3 described above is an information processing device having a CPU, a ROM, a RAM, an external storage device, etc., and various software for these servers and terminals are stored in a storage medium. It is read and held in the memory and executed by the CPU. In addition, plant computers such as the unit computers 7a and 7b and the outdoor equipment computers 9a and 9b collect and calculate operation result data relating to the power generation facilities of the power plant, that is, plant data depending on the operation history of the plant. The plant data is sent to the plant data management server 2 via the gateway server 5. Here, the plant data sent from the plant computers (unit computers 7a and 7b, outdoor equipment computers 9a and 9b) is converted into analog history data depending on the operation history of the plant collected by each plant computer, and this analog data. It includes computer data such as average value, maximum value, and minimum value calculated based on this.

  The gateway server 5 receives and sorts plant data (analog history data, computer data) sent from each plant computer (unit computers 7a and 7b, outdoor equipment computers 9a and 9b) and temporarily stores them. The history data and the computer data are sent to the plant data management server 2 at a cycle of 1 minute, for example.

  The plant data management server 2 collects plant data and stores it for a certain period. As shown in FIG. 2, the plant data management server 2 is connected to the backup server 4, the control room terminal 3, the gateway server 5, and the like. An input / output unit 2a for controlling communication, a data storage unit 2b for storing plant data fetched from the gateway server 5 via the input / output unit 2a, and input of plant data according to a predetermined control program given to the memory And a control unit 2c that performs output control and management.

  Here, the control unit 2c and backup time determination means 2c1 for determining whether or not it is a backup time, and backup data transmission for extracting plant data to be backed up at the backup time from the plant data stored in the data storage unit 2b. Means 2c2 for fetching plant data sent from the gateway server 5 and storing it in the data storage unit 2b, and extracting and inputting plant data for backup from the plant data stored in the data storage unit 2b. The data is sent to the backup server 4 via the output unit 2a. The data storage unit 2b has a capacity capable of storing analog history data for about two years and computer data for about five years.

  The backup server 4 stores plant data sent from the plant data management server 2 for a long period of time, and includes an input / output unit 4a that controls communication with the plant data management server 2, the control room terminal 3, and the like, The data to be backed up output from the data management server is taken in via the input / output unit 4a, and temporarily stored in the data storage unit 4b, and the input / output control and management of plant data according to a predetermined control program given to the memory And a control unit 4c for performing the above.

  Here, the control unit 4c thins out the backup target data temporarily stored in the data storage unit 4b in a predetermined cycle (for example, a cycle of 20 minutes) and stores it in another area of the data storage unit 4b. Means 4c1, full data backup processing means 4c2 for moving backup target data temporarily stored in the data storage unit to auxiliary storage device 10 having a removable storage medium such as a DVD without thinning out, and auxiliary storage device 10 And a restoration means 4c3 for restoring plant data stored in a removable storage medium to the data storage unit via the data storage unit 4d. The backup data extracted by the plant data management server 2 at the backup time is stored in the data storage unit 4d. The data is stored in the auxiliary storage device 10.

  The data storage unit 4d has a capacity capable of storing thinned analog history data for about 30 years and computer data for about 30 years. The auxiliary storage device 10 having a removable storage medium such as a DVD has a capacity capable of storing analog history data for about two months without thinning out. Further, the plant data stored in the data storage unit of the plant data management server 2, the plant data stored in the data storage unit of the backup server 4, and the removable storage medium set in the auxiliary storage device 10 are recorded. The plant data can be viewed on a dedicated terminal such as the control room terminal 3.

  The above-described data processing process is performed, for example, by supplying a backup control program that can be read by a plant data management server or a backup server via a storage medium such as a CD-R or via a network. The data processing is performed by executing the installed control program, and the data processing example performed by the plant data management server 2 and the backup server 4 will be described below with reference to the flowchart shown in FIG. While explaining.

  First, in the plant data management server 2, it is determined whether or not analog history data and computer data having a 1-minute cycle have been input from the plant computer side (S01P). The data is stored in the data storage unit in association with the collection date (S02P).

  Thereafter, it is determined whether or not it is the backup time (S03P), and if it is determined that it is not the backup time, the above-described processing routine is repeatedly performed at a predetermined interval without performing the backup processing described below. The backup time is set, for example, at 12:00 pm on the first Saturday of every month. Therefore, the analog data and computer data are stored in the data storage unit 2b of the plant data management server 2 for one minute until this time comes. It will be accumulated in a cycle.

If it is determined in S03 that the backup time is reached, a part of the plant data stored in the data storage unit 2b is backed up to the backup server 4.
Specifically, among the analog history data stored in the data storage unit 2b, the analog history data for one month two years ago (the data for one month before one year and eleven months) is transmitted to the backup server 4. (S04P), a table for storing the analog history data to be backed up (backup target analog history data) is reconfigured for reading new analog history data (S05P), and the computer data stored in the data storage unit 2b Among them, analog history data for one month five years ago (data for one month before four years and eleven months) is transmitted to the backup server 4 (S06P), and computer data for one month to be backed up. (Backup target computer data) is deleted from the data storage unit 2b (S07P).

  In response to such processing at the plant data management server 2, the backup server 4 determines whether or not analog history data for one month two years ago has been input (S01B), and it has been determined that it has been input. In this case, the analog history data for one month two years ago is backed up in the data storage unit 4b (S02B).

  Then, the backed up analog history data for one month is temporarily restored (S03B), and the backed up analog history data for one month is thinned out at a cycle of 20 minutes and stored in another table of the data storage unit 4b. (S04B). Further, the temporarily restored analog history data is directly moved to the DVD as the auxiliary storage device 10 without being thinned (S05B).

  Thereafter, the backup server 4 determines whether or not computer data for one month five years ago has been input (S06B). If it is determined that it has been input, an analog history for one month five years ago is determined. Data is backed up in the data storage unit 4b (S07B).

  Thus, when the total data capacity of the plant data stored in the plant data management server approaches the limit of the memory capacity of the plant data management server, the oldest one month of plant data is transferred to the backup server 4 and the analog data Since the history data is stored in the data storage unit 4b in a thinned state and stored on the DVD without being thinned out, the data for the last two years accesses the data storage unit 2b of the plant data management server 2. It is possible to obtain the thinned plant data by accessing the data management unit of the backup server even after two years have passed. If the thinned plant data is insufficient, a DVD medium containing full data for the corresponding period is set in the auxiliary storage device 10 and the plant data at a desired time is acquired from the control room terminal 3 or the like. It becomes possible.

  Therefore, although the plant data of a sufficiently retroactive period cannot be used depending on the plant data management server 2, the plant data can be used for another 30 years. In addition, plant data from two years ago can be quickly grasped from the thinned plant data, and only when detailed data is required, it can be stored in a removable storage medium. Therefore, it is possible to construct a user-friendly backup system.

  In the above-described configuration, the thinning cycle is, for example, a 20-minute cycle, but may be a cycle longer than the cycle (1 minute) of the plant data sent from the gateway server. In the above configuration, an example in which a DVD is used as an auxiliary storage device having a removable storage medium has been described. However, another device having a removable storage medium may be used instead.

FIG. 1 is a block diagram showing an example of a thermal power plant using a plant data backup system according to the present invention. It is a block diagram which shows the structural example of a plant data management server and a backup server. FIG. 3 is a flowchart for explaining an example of processing of plant data by the plant data management server and the backup server.

Explanation of symbols

2 Plant data management server 4 Backup server 7a, 7b Unit computer 9a, 9b Computer for outdoor equipment 10 Auxiliary storage device

Claims (7)

A plant data management server that periodically takes in plant data sent from a plant computer and saves it in a storage unit, and the plant connected to the plant data management server and stored in the storage unit In a plant data backup system comprising a backup server for backing up data,
The plant data management server determines whether it is a backup time of the plant data, and the plant data stored in the storage unit when it is determined by the determination means that the backup time is Among them, it has a data sending means for extracting plant data of the past predetermined period set according to the type of data and sending it to the backup server,
The backup server includes main storage means for storing data and auxiliary storage means having a removable storage medium, and stores at least part of the plant data sent by the data sending means as it is in the auxiliary storage means. Full data backup means, and intermittent data backup means for thinning out the at least part of the plant data and storing it in the main storage means,
The plant data management server further comprises means for making available for storing new plant data for taking in the storage area of the plant data sent to the backup server after sending the plant data by the data sending means from the plant computer. Plant data backup system characterized by The plant data consists of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data,
The full data backup means and the intermittent data backup means are executed for the analog history data,
2. The plant data backup system according to claim 1, wherein the backup server further comprises means for storing the computer data sent by the data sending means as it is in the main storage means. Connects a plant data management server that periodically captures and saves plant data that depends on the operation history of the plant sent from the plant computer in the storage unit, and a backup server that backs up the plant data stored in the storage unit And a plant data backup method using a network system configured to include main storage means for storing data in the backup server and auxiliary storage means having removable storage media,
In the plant data management server, a step of determining whether or not it is a backup time of the plant data, and when it is determined that it is a backup time of the plant data, the plant data stored in the storage unit Among them, a process of extracting plant data for a predetermined period in the past set according to the type of data and sending it to the backup server, and a storage area for the data sent to the backup server after sending the plant data Making available for new plant data captured from
At the backup server, at least a part of the plant data sent from the plant data management server is stored in the auxiliary storage unit as it is, and at least a part of the plant data is thinned out and stored in the main storage unit. A plant data backup method comprising a backup process. The plant data consists of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data,
The backup process is performed on the analog data, and the computer data is stored in the main storage device as it is by the backup server before or after the backup process. The plant data backup method according to claim 3, wherein: A plant data management server that periodically takes in plant data sent from a plant computer and saves it in a storage unit, and the plant connected to the plant data management server and stored in the storage unit A backup server for backing up data, and for backing up plant data using a system comprising a main storage means for storing data in the backup server and an auxiliary storage means having a removable storage medium In the computer-readable backup control program of
Of the plant data stored in the storage unit when it is determined that the plant data management server determines whether it is the backup time of the plant data and the backup time of the plant data A function of extracting plant data for a predetermined period in the past set according to the type of data and sending it to the backup server; and a storage area for data sent to the backup server after sending the plant data from the plant computer Realize functions that can be used for new plant data to be imported,
A backup that causes the backup server to store at least a part of the plant data sent from the plant data management server in the auxiliary storage unit as it is, and to thin out and store the at least a part of the plant data in the main storage unit Backup control program for realizing the functions. The plant data consists of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data,
Realizing the backup function for the analog history data,
6. The backup control program according to claim 5, further comprising a function of causing the backup server to store the computer data sent from the plant data management server in the main storage device as it is. A computer-readable storage medium storing the program according to claim 5 or 6.

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